Tire-filler.



H. J. S. KElIVl.

TIRE FILLER. APPLICATION FILED JUNE 2. I9I4.

J l I S Suma/nto@ wh/www HARRY J. S. KEIM, OF CATASAUQUA, PENNSYLVANIA.

TIRE-FILLER.

Speciiication of Letters Patent.

Patented Sept. 21, 1915.

Application ned June 2,1914. serial No. 842,418.

T0 u?? wlmi/1. 'it may concern Be it known that I, HARRY J. S. KEIM, citizen of the United States, residing at (.atasauqua, in the county of Lehigh and State of Pennsylvania, lhave invented certain new and useful Improvements in Tire- Fillers, of which the following is a specilication.

This invention relates to improvements in tires for automobiles and like vehicles of the class of cushion tires, and has for one of its objects to provide a simply constructed device which possesses the requisite resiliency and durability withoutfdanger of puncture.

Another object of ,tfhefinvention is toprovide a simply constructed device in which.`

the., resiliency isincig `se without red the resistance.

Another object ofthe invention is toprovidefadevice of thitcharacter whichpos*` sesses the same resiliency as thev ordinary pneumatic tire without danger of puncture or blow-outs and increases the durability of the tire casing and at the same time permits carrying the weight of the vehicle and load without flattening the tire casing.

Vith these and other objects in view.v the invention consists in certain novel features of construction as hereinafter shown and described and then specifically' pointed out in the claims: and in the drawings illustrative of the preferred embodiment of the invention-Figure 1 is a transverse section of a tire constructed in accordance with the improvement. Fig. 2 is a section on the line 2 2 of Fig. 1.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The improved device may be applied to any of the ordinary tire casings, and it is not desired therefore to limit the invention in this respect, but for the purpose of illustration the improved device is shown applied to a conventional tire casing, the heavy body portion being represented at 10 and the clencher ribs at 11 in position to be engaged in the ordinary manner by the clencher iianges 12 of the rim 13. The felly portion of the wheel is indicated at 14: and one of the spokespat 15. In the improved tire the usual air tube is not employed, but the interior of the casing 10 is filled with a core member represented as a whole at 16 which conforms in outline to the interior of an ordinary pneumatic tire when expanded, so that the improved tire presents the same appearance as the ordinary pneumatic tire. The core 16 is constructed of relatively soft rubber or like material and is provided with a plurality of outwardly opening cavities or recesses '17 spaced apart entirely around the core, longitudinally.

The cavities may be of any required size or shape and disposed at any required distance apart, but will generally be arranged as represented in Fig. 2 with a row of relatively large recesses near the lower edge of the core'and a row of alternating relatively large and relatively small recesses slightly beyond the center or medial line of the core.

`By this means a relatively large portionof the core is disposed externally of the outer row of recesses, so that a relatively large bulk or mass of the material of the core is retained at the center as shown in Fig. l, to

receive the heaviest impact when strain is applied by the load of the vehicle or When running over obstructions. Thus, the full strength of the core is retained centrally thereof to resist the pressure, while the outwardly opening cavities 17 are located at the sides of the core, or where they do not materially weaken the structure. The core is thus materially lightened without detriment to its resisting qualities, while at the'same time the resiliency is increased.

Having thus described the invention, what is claimed as new is:

1. A core for a tire formed of resilient material and of uniform texture with the central portion continuous, said core having a series of concentrically arranged relatively large cavities of uniform size and opening laterally and located nea-r the inner portion of the core, and a series of other concentrically arranged cavities alternately large and small in diameter-,the smaller cavities of the outer series being located in radial alinement with the inner cavities and the larger cavities of the outer series arranged in staggered relation tothe inner series of cavities and all of the cavities terminating at the continuous central portion, whereby the resiliency of the tire is increased and the weight decreased.

2. A core for a tire :formed of resilient material and of uniform texture and eggshaped transversely and adapted to be in closed in the shoe of an automobile tire with f wardly, said core having a continuous central portion and a series of concentric-ally arrangedrelatively large cavities of uniform size and opening laterally and located near the inner smaller portion of the core, and a Series of other concentrically arranged cavities alternately large and small in diameter and located substantially midway of the core, the smaller cavities of the outer series being located in radial alinement with the inner cavities and the larger cavities of the outer series arranged in staggered relation to the inner series of cavities, the inner ends of all of the cavities terminating at the continuous central portion, whereby the major portion of the material of the core is contained within the larger outer portion and the cavities contained in the inner smaller portion of the core to increase the resiliency of the tire and decreasing its weight.

In testimony whereof I afhx my signature in presence of two Witnesses.

HARRY J. S. KEIM. [L.s.] Witnesses CHARLES J. Krul, EDWIN H. Fnxs'rmmixomsn. Y

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

